Package org.refcodes.io

Class AbstractPrefetchInputStreamReceiver<DATA extends Serializable>

java.lang.Object

org.refcodes.component.AbstractConnectableAutomaton

org.refcodes.io.AbstractReceiver<DATA>

org.refcodes.io.AbstractPrefetchInputStreamReceiver<DATA>

Type Parameters:

DATA - The type of the datagram to be operated with.

All Implemented Interfaces:

org.refcodes.component.Closable, org.refcodes.component.Closable.CloseAutomaton, org.refcodes.component.ClosedAccessor, org.refcodes.component.ConnectableComponent, org.refcodes.component.ConnectableComponent.ConnectableAutomaton, org.refcodes.component.ConnectionStatusAccessor, org.refcodes.component.OpenedAccessor, BlockProvider<DATA>, BlockReceiver<DATA>, DatagramProvider<DATA>, DatagramReceiver<DATA>, Provider<DATA>, Receivable, Receiver<DATA>, org.refcodes.mixin.Loggable, org.refcodes.mixin.Releaseable

Direct Known Subclasses:

PrefetchBidirectionalStreamConnectionTransceiverImpl, PrefetchInputStreamConnectionReceiverImpl

public abstract class AbstractPrefetchInputStreamReceiver<DATA extends Serializable>
extends AbstractReceiver<DATA>
implements org.refcodes.mixin.Loggable

Abstract implementation of the Receiver interface. As of the prefetching functionality, a separate daemon thread (retrieved via an ExecutorService) reads from the provided InputStream and places the datagrams into a datagram queue until the datagram queue's capacity is reached. Datagrams are read by the AbstractReceiver.readDatagram() (AbstractReceiver.readDatagrams()) by them methods popping the datagrams from the datagram queue. If the queue is empty, then the AbstractReceiver.readDatagram() ( AbstractReceiver.readDatagrams()) method is blocked until the daemon thread places new datagrams into the queue. See also AbstractReceiver.

Nested Class Summary

Nested classes/interfaces inherited from interface org.refcodes.component.Closable

org.refcodes.component.Closable.CloseAutomaton, org.refcodes.component.Closable.CloseBuilder<B extends org.refcodes.component.Closable.CloseBuilder<B>>

Nested classes/interfaces inherited from interface org.refcodes.component.ClosedAccessor

org.refcodes.component.ClosedAccessor.ClosedMutator, org.refcodes.component.ClosedAccessor.ClosedProperty

Nested classes/interfaces inherited from interface org.refcodes.component.ConnectableComponent

org.refcodes.component.ConnectableComponent.ConnectableAutomaton

Nested classes/interfaces inherited from interface org.refcodes.component.ConnectionStatusAccessor

org.refcodes.component.ConnectionStatusAccessor.ConnectionStatusMutator, org.refcodes.component.ConnectionStatusAccessor.ConnectionStatusProperty

Nested classes/interfaces inherited from interface org.refcodes.component.OpenedAccessor

org.refcodes.component.OpenedAccessor.OpenedMutator, org.refcodes.component.OpenedAccessor.OpenedProperty

Field Summary

Fields inherited from class org.refcodes.io.AbstractReceiver

DATAGRAM_QUEUE_SIZE

Fields inherited from interface org.refcodes.mixin.Loggable

RUNTIME_LOGGER_CLASS, RUNTIME_LOGGER_FACTORY_CLASS, RUNTIME_LOGGER_FACTORY_METHOD

Constructor Summary

Constructors

Constructor	Description
AbstractPrefetchInputStreamReceiver()	Creates an AbstractPrefetchInputStreamReceiver.
AbstractPrefetchInputStreamReceiver(int aQueueCapacity)	Creates an AbstractPrefetchInputStreamReceiver using the given datagram queue capacity.
AbstractPrefetchInputStreamReceiver(int aQueueCapacity, ExecutorService aExecutorService)	Creates an AbstractPrefetchInputStreamReceiver using the given ExecutorService required for thread generation in an JEE environment.
AbstractPrefetchInputStreamReceiver(ExecutorService aExecutorService)	Creates an AbstractPrefetchInputStreamReceiver using the given ExecutorService required for thread generation in an JEE environment.

Method Summary

Modifier and Type	Method	Description
void	close()
protected boolean	isOpenable(InputStream aInputStream)	Checks if is openable.
protected void	open(InputStream aInputStream)	Open, see also ConnectionOpenable.open(Object).

Methods inherited from class org.refcodes.component.AbstractConnectableAutomaton

getConnectionStatus, isClosable, isClosed, isOpenable, isOpened, open, setConnectionStatus

Methods inherited from class org.refcodes.io.AbstractReceiver

hasDatagram, pushDatagram, pushDatagrams, pushDatagrams, readDatagram, readDatagrams, releaseAll

Methods inherited from interface org.refcodes.component.Closable

closeIn, closeQuietly, closeUnchecked

Methods inherited from interface org.refcodes.component.Closable.CloseAutomaton

isClosable

Methods inherited from interface org.refcodes.component.ClosedAccessor

isClosed

Methods inherited from interface org.refcodes.component.ConnectionStatusAccessor

getConnectionStatus, isConnectionOpened

Methods inherited from interface org.refcodes.mixin.Loggable

alert, alert, critical, critical, debug, error, info, notice, panic, trace, warn, warn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.refcodes.component.OpenedAccessor

isOpened

Methods inherited from interface org.refcodes.io.Receiver

readDatagrams

Constructor Detail

AbstractPrefetchInputStreamReceiver

public AbstractPrefetchInputStreamReceiver()

Creates an AbstractPrefetchInputStreamReceiver.

AbstractPrefetchInputStreamReceiver

public AbstractPrefetchInputStreamReceiver(ExecutorService aExecutorService)

Creates an AbstractPrefetchInputStreamReceiver using the given ExecutorService required for thread generation in an JEE environment.

Parameters:

aExecutorService - The ExecutorService to be used, when null then an ExecutorService something line Executors.newCachedThreadPool() is then retrieved.

AbstractPrefetchInputStreamReceiver

public AbstractPrefetchInputStreamReceiver(int aQueueCapacity)

Creates an AbstractPrefetchInputStreamReceiver using the given datagram queue capacity.

Parameters:

aQueueCapacity - The capacity of the prefetch queue before it blocks until data is read via AbstractReceiver.readDatagram() ( AbstractReceiver.readDatagrams()).

AbstractPrefetchInputStreamReceiver

public AbstractPrefetchInputStreamReceiver(int aQueueCapacity,
                                           ExecutorService aExecutorService)

Creates an AbstractPrefetchInputStreamReceiver using the given ExecutorService required for thread generation in an JEE environment.

Parameters:

aQueueCapacity - The capacity of the prefetch queue before it blocks until data is read via AbstractReceiver.readDatagram() ( AbstractReceiver.readDatagrams()).

aExecutorService - The ExecutorService to be used, when null then an ExecutorService something line Executors.newCachedThreadPool() is then retrieved.

Method Detail

close

public void close()
           throws org.refcodes.component.CloseException

Specified by:

close in interface org.refcodes.component.Closable

Overrides:

close in class AbstractReceiver<DATA extends Serializable>

Throws:

org.refcodes.component.CloseException

open

protected void open(InputStream aInputStream)
             throws org.refcodes.component.OpenException

Open, see also ConnectionOpenable.open(Object).

Parameters:

aInputStream - the input stream

Throws:

org.refcodes.component.OpenException - the open exception

isOpenable

protected boolean isOpenable(InputStream aInputStream)

Checks if is openable. See also ConnectionOpenable.ConnectionOpenAutomaton.isOpenable(Object).

Parameters:

aInputStream - the input stream

Returns:

true, if is openable